[perl #22753] overload::StrVal() fails for regexp refs

[p5sagit/p5-mst-13.2.git] / cop.h

diff --git a/cop.h b/cop.h
index fe0ca8a..44305da 100644 (file)
--- a/cop.h
+++ b/cop.h
@@ -1,10 +1,16 @@
 /*    cop.h
  *
- *    Copyright (c) 1991-2002, Larry Wall
+ *    Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
+ *    2000, 2001, 2002, 2003, by Larry Wall and others
  *
  *    You may distribute under the terms of either the GNU General Public
  *    License or the Artistic License, as specified in the README file.
  *
+ * Control ops (cops) are one of the three ops OP_NEXTSTATE, OP_DBSTATE,
+ * and OP_SETSTATE that (loosely speaking) are separate statements.
+ * They hold information important for lexical state and error reporting.
+ * At run time, PL_curcop is set to point to the most recently executed cop,
+ * and thus can be used to determine our current state.
  */
 
 struct cop {
@@ -115,13 +121,23 @@ struct block_sub {
     PAD                *oldcomppad;
 };
 
-#define PUSHSUB(cx)                                                    \
+/* base for the next two macros. Don't use directly */
+#define PUSHSUB_BASE(cx)                                               \
        cx->blk_sub.cv = cv;                                            \
        cx->blk_sub.olddepth = CvDEPTH(cv);                             \
-       cx->blk_sub.hasargs = hasargs;                                  \
+       cx->blk_sub.hasargs = hasargs;
+
+#define PUSHSUB(cx)                                                    \
+       PUSHSUB_BASE(cx)                                                \
        cx->blk_sub.lval = PL_op->op_private &                          \
                              (OPpLVAL_INTRO|OPpENTERSUB_INARGS);
 
+/* variant for use by OP_DBSTATE, where op_private holds hint bits */
+#define PUSHSUB_DB(cx)                                                 \
+       PUSHSUB_BASE(cx)                                                \
+       cx->blk_sub.lval = 0;
+
+
 #define PUSHFORMAT(cx)                                                 \
        cx->blk_sub.cv = cv;                                            \
        cx->blk_sub.gv = gv;                                            \